Auckland and Wellington have maintained their smooth starts to the one-day season, with both sides picking up their second victory of the Ford Trophy campaign.
Auckland lead the competition with nine points after backing up their emphatic opening win with a more challenging 19-run victory over Otago.
Young batsman Sean Solia again was the star of the show for Auckland. Following his debut innings of 152 on Sunday, Solia smacked 84 off 73 balls to set up another strong platform.
He was aided by the returning Robbie O'Donnell (42) and late hitting from Donovan Grobbelaar (45 from 40 balls), but quality bowling from Anaru Kitchen (4-23) and Jimmy Neesham (4-58) gave Otago's deep batting lineup a chaseable total.
They looked on track at 120-2, but spin duo Rob Nicol and Tarun Nethula claimed five wickets between them to peg the contest back in Auckland's favour. Lockie Ferguson then overcame an erratic display which saw him bowl 10 wides to wrap up the tail and keep Auckland atop the ladder.